The wildfire started about 3 p.m. off of Wildcat Canyon and San
Vicente Road, according to Capt. Mike Mohler of the California
Department of Forestry and Fire Protection, or CalFire.

CalFire spokeswoman Roxanne Provaznik said Tuesday that no
malfunctioning vehicle or driver had been found.

An official with San Diego County Sheriff's Department said no
evacuations were ordered, but a sheriff's helicopter flew over
homes in San Diego Country Estates and the Barona Mesa area to tell
residents about the fire and that they "they should not panic."

CalFire officials said one firefighter suffered a heat-related
injury.